git push
"""
remote: error: refusing to update checked out branch: refs/heads/master
By default, updating the current branch in a non-bare repository is denied, because it will make the index and work tree inconsistent with what you pushed, and will require 'git reset --hard' to match the work tree to HEAD.
! [remote rejected] master -> master (branch is currently checked out)
error: failed to push some refs to '/...'
"""
3 ways to avoid this error:
usual method 1: push only to bare repositories.
usual method 2: in the upstream non-bare repository, temporarily switch to a different branch.
this could be done by creating a new branch:
git switch -c temporary
then, later:
git switch -
git branch -d temporary
streamlined method 3: instead of creating a temporary branch upstream at the current commit as above, switch to a detached state at the current commit. full example:
# upstreamdir is a normal (not bare) git repository
git clone upstreamdir downstreamdir
pushd downstreamdir
# make some edits to an existing file and commit
echo "more stuff" >> "$FILE"
git commit -a -m downstreamdir-commit
popd
pushd upstreamdir
git switch --detach
# succeeds printing empty string
git branch --show-current
popd
pushd downstreamdir
# if not for detach earlier, this would fail with the above error message
git push
popd
pushd upstreamdir
# dash "-" is shortcut to switch to the previous branch without having to type its name
git switch -
# verify no longer detached
git branch --show-current
# prints "master"
# latest commit in upstream
git log -1
# shows "downstreamdir-commit"
popd
